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30.11.2018 | Miscellaneous | Ausgabe 2/2019

Graefe's Archive for Clinical and Experimental Ophthalmology 2/2019

Differences of body height, axial length, and refractive error at different ages in Kumejima study

Zeitschrift:
Graefe's Archive for Clinical and Experimental Ophthalmology > Ausgabe 2/2019
Autoren:
Takehiro Yamashita, Aiko Iwase, Hiroshi Sakai, Hiroto Terasaki, Taiji Sakamoto, Makoto Araie

Abstract

Purpose

To determine the relationships between the axial length (AL), refractive error (RE), and body height (BH) at different ages of a genetically-stable population in Kumejima, Japan.

Methods

Cross-sectional, population-based study. Residents of Kumejima who were ≥ 40-years old were studied. The eligible residents had a thorough ocular examinations including measurements of the AL, RE, and BH. The subjects were divided into decade groups. The relationships between the AL, the RE, and the BH of the different decades were determined.

Results

Reliable measurements of the AL of the right eyes were obtained from 2198 (1103 men and 1095 women) normal subjects. There was a significant and negative correlation between the age and the BH (r = −0.44, P < 0.001) and the AL (r = −0.27, P < 0.001). There were significant and positive correlations between the BH and AL in all subjects (r = 0.38, P < 0.001). There was a significant and positive correlation between the BH and the AL in all age brackets (r = 0.26~0.49, P < 0.001). There was a significant and positive correlation between the age and RE (spherical equivalent; r = 0.49, P < 0.001). There were significant and negative correlations between the BH and RE in all subjects (r = −0.29, P < 0.001).

Conclusions

The younger individuals tend to be taller, have longer AL, and are more myopic. Considering the marked improvement of the nutritional status during the growth period of each generation and its close association with BH, nutrition may be one of factors that is related to the increase in the prevalence of myopia in the younger generation.

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Literatur
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